Wristwatch



FIG. 1 is a front elevational view of a wristwatch in accordance with our inventive design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for wristwatch, as shown and described. 